<s>
In	O
computer	B-General_Concept
science	I-General_Concept
,	O
in	O
the	O
field	O
of	O
databases	O
,	O
write	B-General_Concept
–	I-General_Concept
read	I-General_Concept
conflict	I-General_Concept
,	O
also	O
known	O
as	O
reading	B-General_Concept
uncommitted	I-General_Concept
data	I-General_Concept
,	O
is	O
a	O
computational	O
anomaly	O
associated	O
with	O
interleaved	O
execution	O
of	O
transactions	O
.	O
</s>
<s>
This	O
is	O
a	O
dirty	B-General_Concept
read	I-General_Concept
.	O
</s>
<s>
Strict	B-Operating_System
2PL	I-Operating_System
overcomes	O
this	O
inconsistency	O
by	O
locking	O
T2	O
out	O
from	O
performing	O
a	O
Read/Write	O
on	O
A	O
.	O
</s>
<s>
Note	O
however	O
that	O
Strict	B-Operating_System
2PL	I-Operating_System
can	O
have	O
a	O
number	O
of	O
drawbacks	O
,	O
such	O
as	O
the	O
possibility	O
of	O
deadlocks	B-Operating_System
.	O
</s>
